Tankao makes earbuds for mobile devices. When Tankao produces 20 sets of earbuds, its average variable cost is $5 per set and its average total cost is $8 per set. Tankao's:

marginal cost is less than $3 per set.
marginal cost is equal to its average fixed cost.
marginal cost is $3 per set.
average fixed cost is $3 per set.

How do communism and socialism differ in terms of the role that government plays in the economy ?

In a market economy, supply and demand are important because theya. (i) play a critical role in the allocation of the economy's scarce resources.b. (ii) determine how much of each good gets produced.c. (iii) can be used to predict the impact on the economy of various events and policies.d. all of (i), (ii), and (iii) are correct.

Norbert and suzie are both lineworkers for a utility company who have been working together for almost two years. norbert frequently tells suzie that the job is called "lineman" and not "linewoman," and thus, it is not a woman's job. he plays practical jokes on her such as hiding some of her tools and sabotaging her truck. he asks her when she plans on getting pregnant and staying at home to take care of her children and gives her copies of " wanted" ads for secretarial and waitress jobs. such behavior has kept suzie disturbed at work. if suzie complains about norbert's conduct: